Billing Spring #1 Reservoir Report

Last Updated: December 5, 2025

Billing Spring #1 is a private water resource located in Garfield, Montana, managed by the USDA NRCS.


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Summary

Constructed in 1956, this earth dam serves multiple purposes including fire protection, stock water, and small fish pond. With a dam height of 24 feet and a storage capacity of 128 acre-feet, this structure plays a crucial role in water management in the area.

The dam is regulated by the DNRC and undergoes regular inspections to ensure its safety and functionality. With a low hazard potential and a moderate risk assessment rating, Billing Spring #1 is a key asset in the region's water resource infrastructure. Its location in TR-SPRING COULEE and its close proximity to the Omaha District make it an essential component in the area's water supply network.

Water resource and climate enthusiasts will appreciate the vital role that Billing Spring #1 plays in providing water for various uses in the region. With its controlled spillway, adequate storage capacity, and state-regulated status, this dam is a reliable source of water for fire protection, livestock, and ecological purposes. Its history, design, and regulatory oversight make it a valuable resource for sustainable water management in Garfield, Montana.

Year Completed

1956

Dam Length

295

Dam Height

24

River Or Stream

TR-SPRING COULEE

Primary Dam Type

Earth

Surface Area

7.9

Hydraulic Height

21

Drainage Area

360

Nid Storage

128

Hazard Potential

Low

Nid Height

24
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.